Gordon Brown will rally Labour workers in Yorkshire on Wednesday before starting to prepare seriously for the first of the televised leaders' debates.
The Prime Minister will be meeting campaign workers and visiting a health centre in Leeds as he keeps up his campaign tour of battleground seats.
But from mid-afternoon he is due to commit some time to readying himself for Thursday's three-way head-to-head with David Cameron and Nick Clegg.
The debate, to be held in the North West, is the first of three that could dramatically alter the momentum of the campaign.
In advance of the highly-anticipated event, Mr Brown said he was "not so good" at the presentational side of politics and stressed he was not a "personality" that told people what they wanted to hear.
In an interview for ITV1's Tonight: Spotlight on the Leaders programme, he also said he was shy, admitting he was in a "very strange profession" for someone like that.
Mr Brown has sought to portray himself on the campaign trail as a figure of "substance" as opposed to Tory leader David Cameron's "style".
He has dismissed the need for "pyrotechnics", insisting voters will vote for Labour on its record in dealing with the recession and setting out a serious plan for the future.
The party is notably less well-funded now compared with the 2005 election campaign, in which then prime minister Tony Blair travelled frequently by helicopter.
Mr Brown has travelled mainly by car and train, apart from a return flight to his Scottish constituency last weekend.
